English

DTIC AD0601519: A COMMUNICATION SYSTEM AND THEORY FOR INVESTIGATION OF EM WAVE PROPAGATION IN THE EARTH AT FREQUENCIES FROM 0 TO 3000 CPS

The report describes a 40 kilowatt transmitter designed for investigating electromagnetic wave propagation in the earth at frequencies from DC to 3000 cps. The transmitter uses a dipole antenna consisting of two surface electrodes between which a current can be passed through the earth. A brief description of the receiving equipment and some experimental data are included, and a discussion of the related theory and field strength prediction is given in the last section.

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